Answer:
3
Step-by-step explanation:
17+x+12-0=32
29+x-0=32
29+x+32
x=32-29
x=3
remove the 0 from the equation(it doesn't change anything because it's 0) then add the numbers , 17+12=29 then you want to move the constant to the right so x=32-29 .
32-29=3
